Inventor · disambiguated record
Michael C. Derby
Also filed as: DERBY MICHAEL · DERBY MICHAEL C
8 granted patents·33 citations·filing 1998–2014
82Inventor score
Top patents by PatentIndex Score
8 records- 0189US9587458B2Split foldback rings with anti-hooping bandWEATHERFORD LAMB INC·Filed 2014·Granted Mar 7, 2017·16 cites·22 claims
- 0268US9845656B2Extended length packer with timed settingWEATHERFORD LAMB INC·Filed 2014·Granted Dec 19, 2017·3 cites·17 claims
- 0366US9637997B2Packer having swellable and compressible elementsWEATHERFORD LAMB INC·Filed 2013·Granted May 2, 2017·3 cites·24 claims
- 0462US9512693B2Hydraulic set packer with piston to annulus communicationWEATHERFORD LAMB INC·Filed 2014·Granted Dec 6, 2016·2 cites·23 claims
- 0561US8695697B2Downhole tool having setting valve for packing elementDERBY MICHAEL·Filed 2010·Granted Apr 15, 2014·4 cites·50 claims
- 0649US9567822B2Downhole tool having setting valve for packing elementWEATHERFORD LAMB INC·Filed 2014·Granted Feb 14, 2017·0 cites·21 claims
- 0738US9476280B2Double compression set packerDERBY MICHAEL C·Filed 2013·Granted Oct 25, 2016·0 cites·23 claims
- 0834US5947170AAseptic liquid fillingVITAL SIGNS INC·Filed 1998·Granted Sep 7, 1999·5 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →